99164529217 has 16 divisors (see below), whose sum is σ = 113203055952. Its totient is φ = 86054031360.

The previous prime is 99164529151. The next prime is 99164529223. The reversal of 99164529217 is 71292546199.

It is a happy number.

It is a Cunningham number, because it is equal to 314904²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 895445776 + 98269083441 = 29924^2 + 313479^2 .

It is a cyclic number.

It is not a de Polignac number, because 99164529217 - 2²³ = 99156140609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99164529227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59958 + ... + 449359.

It is an arithmetic number, because the mean of its divisors is an integer number (7075190997).

Almost surely, 2^99164529217 is an apocalyptic number.

It is an amenable number.

99164529217 is a deficient number, since it is larger than the sum of its proper divisors (14038526735).

99164529217 is a wasteful number, since it uses less digits than its factorization.

99164529217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510228.

The product of its digits is 2449440, while the sum is 55.

The spelling of 99164529217 in words is "ninety-nine billion, one hundred sixty-four million, five hundred twenty-nine thousand, two hundred seventeen".